<template>
	<div>
		<div class="search">
			<input v-model="keyword" class="search-input" type="text" placeholder="输入城市名或拼音">
		</div>
		<div class="search-content" v-show="keyword" ref="search">
			<ul>
				<li class="search-item border-bottom" v-for="item of list" :key="item.id" @click="handleCityClick(item.name)">
					{{item.name}}
				</li>
				<li class="search-item border-bottom" v-show="!list.length">
					没有找到匹配数据
				</li>
			</ul>
		</div>
	</div>
</template>
<script>
import Bscroll from 'better-scroll'
import { mapMutations } from 'vuex'
export default{
	name: "city-search",
	props: {
		cities: Object
	},
	data () {
		return {
			keyword: '',
			list: []
		}
	},
	methods: {
		handleCityClick (city) {
			this.changeCity(city)
			this.$router.push("/")
		},
		...mapMutations(['changeCity'])
	},
	watch: {
		keyword () {
			if(this.timer){
				clearTimeout(this.timer)
			}
			if (!this.keyword) {
				this.list = []
				return
			}
			this.timer = setTimeout(() => {
				const result = []
				for (let i in this.cities) {
					this.cities[i].forEach((value) => {
						if (value.spell.indexOf(this.keyword) > -1 || value.name.indexOf(this.keyword) > -1) {
							result.push(value)
						}
					})
				}
				this.list = result
			}, 100)
		}

	},
	mounted () {
		this.scroll = new Bscroll(this.$refs.search)
	}
	
}
</script>
<style lang="stylus" scoped>
	@import '~styles/varibles.styl'
	.search
		height .72rem
		padding 0 .1rem
		background $bgColor
		.search-input
			box-sizing border-box
			width 100%
			height .62rem
			padding 0 .1rem
			line-height .62rem
			text-align center
			border-radius .06rem
			color #666
	.search-content
		overflow hidden
		position absolute
		top 1.58rem
		left 0
		right 0
		bottom 0
		background #eee
		z-index 1
		.search-item
			line-height .62rem
			padding-left .2rem
			color #666
			background #fff
</style>